Why am I getting a TGERR display at power up and losing calibration?

On the HI 2110WI, HI 2151/30WC and the older HI 2151/20WC, when the Secure Memory Module (SMM) fails or is missing, you will receive a TGERR or T6ERR at power up.

The SMM part# for the HI 2110WI and HI 2151/30WC is 0519-0512-06.

The internal dip switch package S2-8 could be in the ON position.  You can verify that setting by running Self-Test and observing DIP2 should be = 0

The SMM for the HI 2151/20WC is no longer available.